Re: which should be faster

Actually I found a note on tom kyte's book(expert one on one) that it shouldn't matter weather u index c1,c2 or c2,c1 . Although my scenerio is not exact . But its kinda similer . I did a little testing and found that just invdate is faster compare to org , indate .

Thanks ,
-ak

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Friday, May 02, 2003 2:12 PM

> AK
> I would vote for just invdate. The index structure will be
smaller,
> a little faster to search. And if you have any queries that omit
> organization, the the optimizer may feel it can't use the index. But if
this
> is a critical decision, why not test it both ways. I've noticed that is
how
> the experts on this list are different from mediocre people like me --
they
> test a lot.
>
>
>
> Dennis Williams
> DBA, 60%OCP, 100% DBA
> Lifetouch, Inc.
> dwilliams_at_lifetouch.com
>
> -----Original Message-----
> Sent: Friday, May 02, 2003 3:27 PM
> To: Multiple recipients of list ORACLE-L
>
>
> I have table invoice with columns ( organization , invdate , amount )
>
> there are tons of query which do search on organization and invdate. But
> there is only one distinct value for organization .
>
> which index should be faster
> a. just on indate or
> b. ( organization, indate ).
>
>
> -ak
>
>
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
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> Author: DENNIS WILLIAMS
> INET: DWILLIAMS_at_LIFETOUCH.COM
>
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-- 
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-- 
Author: AK
  INET: oramagic_at_hotmail.com

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